CN111719214A - Processing method of fabric with full-band radiation protection performance - Google Patents
Processing method of fabric with full-band radiation protection performance Download PDFInfo
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- CN111719214A CN111719214A CN202010576073.0A CN202010576073A CN111719214A CN 111719214 A CN111719214 A CN 111719214A CN 202010576073 A CN202010576073 A CN 202010576073A CN 111719214 A CN111719214 A CN 111719214A
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- fabric
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- radiation protection
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Classifications
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0035—Protective fabrics
- D03D1/0058—Electromagnetic radiation resistant
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
- D03D13/004—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft with weave pattern being non-standard or providing special effects
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D9/00—Open-work fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/02—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements ultrasonic or sonic; Corona discharge
- D06M10/025—Corona discharge or low temperature plasma
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M10/00—Physical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. ultrasonic, corona discharge, irradiation, electric currents, or magnetic fields; Physical treatment combined with treatment with chemical compounds or elements
- D06M10/04—Physical treatment combined with treatment with chemical compounds or elements
- D06M10/06—Inorganic compounds or elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
Abstract
The invention discloses a processing method of a fabric with full-band radiation protection performance, belonging to the technical field of fabric and clothing processing, and comprising the following steps: (1) selecting superfine light speed intelligent sensing microfiber as a weaving fiber of the fabric; (2) weaving the fibers in the step (1) in a warp-weft interweaving mode, and controlling the quadrilateral angle of the formed fiber grid to be 85-90 degrees; (3) meanwhile, the aperture of the fiber grid formed in the step (2) is controlled to be ultra-micro aperture; (4) and (4) carrying out silver plating treatment on the fabric obtained after the treatment in the step (3), and obtaining the finished fabric. The fabric treated by the invention has strong radiation protection capability and great market competitiveness.
Description
Technical Field
The invention belongs to the technical field of fabric and clothing processing, and particularly relates to a processing method of a fabric with full-band radiation protection performance.
Background
Along with the arrival of the 5G era of smart interconnection of everything, the radio frequency technology of the electromagnetic frequency band above the ultrahigh frequency is more and more widely used, and novel radiation with shorter wavelength and stronger penetrating power, such as centimeter wave and millimeter wave, corresponding to the radio frequency technology is continuously generated, so that the worry of public electromagnetic environment safety is deepened.
At present, the following problems often exist in the traditional electromagnetic wave protective clothing: 1. part of clothes excessively use metal for pursuing effect in one side, but the weaving is unscientific, the effect is not proportional, and the clothes are overweight, insufficient in air permeability and poor in comfort; part of clothes contain a small amount of metal, so that good effect is declared; the technology is often described by qualitative vocabularies such as thinner and denser words, and scientific data support is lacked; 2. the effect of the traditional electromagnetic wave protective clothing is mainly concentrated below 3000Mhz, and the continuous novel radio frequency radiation is difficult to be scientifically, accurately and effectively shielded.
Therefore, there is a need for a substantial and effective improvement in the processing of conventional radiation protective garments.
Disclosure of Invention
The invention aims to provide a processing method of a fabric with full-band radiation protection performance.
The technical purpose of the invention is realized by the following technical scheme:
a processing method of a fabric with full-band radiation protection performance comprises the following steps:
(1) selecting superfine light speed intelligent sensing microfiber as a weaving fiber of the fabric;
(2) weaving the fibers in the step (1) in a warp-weft interweaving mode, and controlling the quadrilateral angle of the formed fiber grid to be 85-90 degrees;
(3) meanwhile, the aperture of the fiber grid formed in the step (2) is controlled to be ultra-micro aperture;
(4) and (4) carrying out silver plating treatment on the fabric obtained after the treatment in the step (3), and obtaining the finished fabric.
Further, the superfine light speed intelligent sensing microfiber in the step (1) is superfine fiber with the diameter of 4-5 μm; the superfine fiber has conductive performance. The significance of controlling the fiber fineness within the range of 4-5 mu m is as follows: firstly, the influence on the conductivity (the conductivity is in direct proportion to the fiber diameter) caused by the excessive thin pursuit of fibers on the sheet surface is avoided, and the radiation-proof function is further influenced; secondly, the lack of comfort caused by over-thickness is avoided; increasing the contact surface of the fiber can generate capillary effect; compared with the traditional short fiber with the diameter of more than 8-10 mu m, the fiber number of the same material can be increased by more than 3-4 times, the contact points among the short fibers are increased, after the textile connection is formed, the fibers can be ensured not to have breakpoints, further the conductive continuity of the fibers is realized, the fibers are ensured to efficiently and automatically and intelligently sense the external radiation change, the light velocity electron flow is formed, further the reverse magnetic field starting shield is formed (according to the Faraday principle), namely the light velocity starting shield is realized, and the extremely fast radiation-proof effect is achieved.
Further, the quadrilateral angle of the fiber mesh in the step (2) is 90 °. According to simulation experiment data, the more 90 degrees the quadrilateral angle of the metal grid interwoven by warps and wefts deviates, the worse the attenuation performance of the radiation-proof clothes is, so that the angle of the metal grid is controlled to be 90 degrees, the maximum shielding performance can be exerted, and the radiation-proof clothes are the best choice for effect. The 90-degree quadrilateral metal grid is equivalent to a tiny rectangular waveguide, and a complete shielding effect is formed by repeated attenuation and reflection.
Further, the pore size of the ultramicropore diameter in the step (3) is 0.2-0.25 mm. The aperture is controlled to be 0.2-0.25 mm, and the electromagnetic wave can not pass through the metal grid according to the protection principle that the aperture of the metal grid is smaller than 1/4 wavelengths, and the metal grid is scientifically designed according to the 1 mm wavelength corresponding to the microwave 300GHz with the highest frequency. Thus, the electromagnetic wave frequency band of the protective cover is wider: the frequency band not only contains the traditional guard frequency band below 3000Mhz, but also covers the 3000M-300Ghz frequency band. The radiation-proof air-permeable plate has both radiation-proof function and air permeability, avoids the influence on air permeability caused by over-small and over-dense pore diameter, and avoids the waste caused by over-dense pursuit of the sheet surface.
Further, the silver plating treatment in the step (4) specifically comprises the following steps:
1) firstly, carrying out low-temperature plasma treatment on the fabric;
2) immersing the fabric processed in the step 1) into a silver nitrate solution for processing for 20-25 min;
3) nitre to step 2)Adding NaBH into silver acid solution4And carrying out ultrasonic treatment on the solution and the polyvinylpyrrolidone solution for 10-15 min, and then taking out.
Further, the low-temperature plasma treatment time in the step 1) is 8-12 min, the distance between the polar plates is 4-10 mm, the atmosphere is oxygen, and the discharge power is 80-90W.
Further, the mass concentration of the silver nitrate solution in the step 2) is 12-15%.
Further, NaBH described in step 3)4The adding amount of the solution is 6-10% of the total mass of the silver nitrate solution; the addition amount of the polyvinylpyrrolidone solution is 1-2% of the total mass of the silver nitrate solution.
Further, the NaBH4The mass concentration of the solution is 4-7%; the mass concentration of the polyvinylpyrrolidone solution is 3-5%.
Further, controlling the frequency of ultrasonic waves to be 600-700 kHz during ultrasonic treatment in the step 3); the temperature of the solution is controlled to be 28-32 ℃ during the ultrasonic treatment.
Compared with the prior art, the invention has the following advantages:
the processing method of the radiation-proof fabric is reasonably improved, and on one hand, the overall radiation shielding effect is obviously improved by strictly controlling the technological parameters during fiber weaving; on the other hand, the surface of the fiber is specially treated, so that the radiation absorption and shielding capacity of the whole fiber is further improved; finally, the fabric treated by the method has strong radiation protection capability, and has high market competitiveness and popularization and application values.
Detailed Description
Example 1
A processing method of a fabric with full-band radiation protection performance comprises the following steps:
(1) selecting superfine light speed intelligent sensing microfiber as a weaving fiber of the fabric;
(2) weaving the fibers in the step (1) in a warp-weft interweaving mode, and controlling the quadrilateral angle of the formed fiber grid to be 85 degrees;
(3) meanwhile, the aperture of the fiber grid formed in the step (2) is controlled to be ultra-micro aperture;
(4) and (4) carrying out silver plating treatment on the fabric obtained after the treatment in the step (3), and obtaining the finished fabric.
The superfine light speed intelligent sensing microfiber in the step (1) is superfine fiber with the diameter of 4 microns; the superfine fiber has conductive performance.
The quadrilateral angle of the fiber grid in the step (2) is 90 degrees.
The aperture size of the ultra-micro pore diameter in the step (3) is 0.2 mm.
The silver plating treatment in the step (4) specifically comprises the following steps:
1) firstly, carrying out low-temperature plasma treatment on the fabric;
2) immersing the fabric processed in the step 1) into a silver nitrate solution for processing for 20 min;
3) adding NaBH into the silver nitrate solution obtained in the step 2)4And carrying out ultrasonic treatment on the solution and the polyvinylpyrrolidone solution for 10min, and then taking out.
The low-temperature plasma treatment time in the step 1) is 8min, the distance between the polar plates is 4mm, the atmosphere is oxygen, and the discharge power is 80W.
The mass concentration of the silver nitrate solution in the step 2) is 12%.
NaBH described in step 3)4The adding amount of the solution is 6 percent of the total mass of the silver nitrate solution; the addition amount of the polyvinylpyrrolidone solution is 1% of the total mass of the silver nitrate solution.
The NaBH4The mass concentration of the solution is 4 percent; the mass concentration of the polyvinylpyrrolidone solution is 3%.
Controlling the frequency of ultrasonic waves to be 600kHz during the ultrasonic treatment in the step 3); the temperature of the solution was controlled at 28 ℃ during sonication.
Example 2
A processing method of a fabric with full-band radiation protection performance comprises the following steps:
(1) selecting superfine light speed intelligent sensing microfiber as a weaving fiber of the fabric;
(2) weaving the fibers in the step (1) in a warp-weft interweaving mode, and controlling the quadrilateral angle of the formed fiber grid to be 88 degrees;
(3) meanwhile, the aperture of the fiber grid formed in the step (2) is controlled to be ultra-micro aperture;
(4) and (4) carrying out silver plating treatment on the fabric obtained after the treatment in the step (3), and obtaining the finished fabric.
The superfine light speed intelligent sensing microfiber in the step (1) is superfine fiber with the diameter of 4.5 microns; the superfine fiber has conductive performance.
The quadrilateral angle of the fiber grid in the step (2) is 90 degrees.
The aperture size of the ultra-micro pore diameter in the step (3) is 0.23 mm.
The silver plating treatment in the step (4) specifically comprises the following steps:
1) firstly, carrying out low-temperature plasma treatment on the fabric;
2) immersing the fabric processed in the step 1) into a silver nitrate solution for processing for 22 min;
3) adding NaBH into the silver nitrate solution obtained in the step 2)4And carrying out ultrasonic treatment on the solution and the polyvinylpyrrolidone solution for 13min, and then taking out.
The low-temperature plasma treatment time in the step 1) is 10min, the distance between the polar plates is 7mm, the atmosphere is oxygen, and the discharge power is 85W.
The mass concentration of the silver nitrate solution in the step 2) is 14%.
NaBH described in step 3)4The adding amount of the solution is 8 percent of the total mass of the silver nitrate solution; the addition amount of the polyvinylpyrrolidone solution is 1.5 percent of the total mass of the silver nitrate solution.
The NaBH4The mass concentration of the solution is 6 percent; the mass concentration of the polyvinylpyrrolidone solution is 4%.
Controlling the frequency of ultrasonic waves to be 680kHz during the ultrasonic treatment in the step 3); the temperature of the solution was controlled at 30 ℃ during sonication.
Example 3
A processing method of a fabric with full-band radiation protection performance comprises the following steps:
(1) selecting superfine light speed intelligent sensing microfiber as a weaving fiber of the fabric;
(2) weaving the fibers in the step (1) in a warp-weft interweaving mode, and controlling the quadrilateral angle of the formed fiber grid to be 90 degrees;
(3) meanwhile, the aperture of the fiber grid formed in the step (2) is controlled to be ultra-micro aperture;
(4) and (4) carrying out silver plating treatment on the fabric obtained after the treatment in the step (3), and obtaining the finished fabric.
The superfine light speed intelligent sensing microfiber in the step (1) is superfine fiber with the diameter of 5 microns; the superfine fiber has conductive performance.
The quadrilateral angle of the fiber grid in the step (2) is 90 degrees.
The aperture size of the ultra-micro pore diameter in the step (3) is 0.25 mm.
The silver plating treatment in the step (4) specifically comprises the following steps:
1) firstly, carrying out low-temperature plasma treatment on the fabric;
2) immersing the fabric processed in the step 1) into a silver nitrate solution for processing for 25 min;
3) adding NaBH into the silver nitrate solution obtained in the step 2)4And carrying out ultrasonic treatment on the solution and the polyvinylpyrrolidone solution for 15min, and then taking out the solution.
The low-temperature plasma treatment time in the step 1) is 12min, the distance between the polar plates is 10mm, the atmosphere is oxygen, and the discharge power is 90W.
The mass concentration of the silver nitrate solution in the step 2) is 15%.
NaBH described in step 3)4The adding amount of the solution is 10 percent of the total mass of the silver nitrate solution; the addition amount of the polyvinylpyrrolidone solution is 2% of the total mass of the silver nitrate solution.
The NaBH4The mass concentration of the solution is 7 percent; the mass concentration of the polyvinylpyrrolidone solution is 5 percent。
Controlling the frequency of ultrasonic waves to be 700kHz during the ultrasonic treatment in the step 3); the temperature of the solution was controlled at 32 ℃ during sonication.
The fabric treated by the method disclosed by the invention is tested, so that the fabric not only can play a good protection role in low frequency (below 300 kHz), medium frequency (300 k-3 MHz) and high frequency (3M-3000 MHz), but also can play a strong radiation protection role in ultrahigh frequency to ultrahigh frequency (3000M-300 GHz), and the electromagnetic wave in the frequency band cannot be scientifically and accurately and effectively protected by the traditional protection fabric and other structures, and meanwhile, unnecessary waste is avoided, the fabric is ecological and environment-friendly, and has great popularization and application values.
Claims (10)
1. A processing method of a fabric with full-band radiation protection performance is characterized by comprising the following steps:
(1) selecting superfine light speed intelligent sensing microfiber as a weaving fiber of the fabric;
(2) weaving the fibers in the step (1) in a warp-weft interweaving mode, and controlling the quadrilateral angle of the formed fiber grid to be 85-90 degrees;
(3) meanwhile, the aperture of the fiber grid formed in the step (2) is controlled to be ultra-micro aperture;
(4) and (4) carrying out silver plating treatment on the fabric obtained after the treatment in the step (3), and obtaining the finished fabric.
2. The processing method of the fabric with the full-band radiation protection performance according to claim 1, wherein the ultrafine light-speed intelligent sensing microfiber in the step (1) is an ultrafine fiber with the diameter of 4-5 μm; the superfine fiber has conductive performance.
3. The processing method of the fabric with the full-band radiation protection performance according to claim 1, wherein the quadrilateral angle of the fiber grids in the step (2) is 90 degrees.
4. The processing method of the fabric with the full-band radiation protection performance according to claim 1, wherein the pore size of the ultra-micro pore diameter in the step (3) is 0.2-0.25 mm.
5. The processing method of the full-band radiation protection fabric according to claim 1, wherein the silver plating treatment in the step (4) specifically comprises the following steps:
1) firstly, carrying out low-temperature plasma treatment on the fabric;
2) immersing the fabric processed in the step 1) into a silver nitrate solution for processing for 20-25 min;
3) adding NaBH into the silver nitrate solution obtained in the step 2)4And carrying out ultrasonic treatment on the solution and the polyvinylpyrrolidone solution for 10-15 min, and then taking out.
6. The processing method of the full-band radiation-proof fabric according to claim 5, wherein the low-temperature plasma treatment time in the step 1) is 8-12 min, the distance between the polar plates is 4-10 mm, the atmosphere is oxygen, and the discharge power is 80-90W.
7. The processing method of the full-band radiation protection fabric according to claim 5, wherein the mass concentration of the silver nitrate solution in the step 2) is 12-15%.
8. The processing method of the full-band radiation protection fabric according to claim 5, wherein the NaBH in the step 3) is added4The adding amount of the solution is 6-10% of the total mass of the silver nitrate solution; the addition amount of the polyvinylpyrrolidone solution is 1-2% of the total mass of the silver nitrate solution.
9. The processing method of the fabric with the full-band radiation protection performance according to claim 8, wherein the NaBH is added4The mass concentration of the solution is 4-7%; the mass concentration of the polyvinylpyrrolidone solution is 3-5%.
10. The processing method of the full-band radiation protection fabric according to claim 5, wherein the frequency of the ultrasonic waves is controlled to be 600-700 kHz during the ultrasonic treatment in the step 3); the temperature of the solution is controlled to be 28-32 ℃ during the ultrasonic treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010576073.0A CN111719214A (en) | 2020-06-22 | 2020-06-22 | Processing method of fabric with full-band radiation protection performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010576073.0A CN111719214A (en) | 2020-06-22 | 2020-06-22 | Processing method of fabric with full-band radiation protection performance |
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| CN111719214A true CN111719214A (en) | 2020-09-29 |
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| CN202010576073.0A Pending CN111719214A (en) | 2020-06-22 | 2020-06-22 | Processing method of fabric with full-band radiation protection performance |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11337681A (en) * | 1998-05-22 | 1999-12-10 | Toray Ind Inc | Radiation protective cloth and radiation protection product |
| CN2372331Y (en) * | 1999-05-19 | 2000-04-05 | 王国和 | Anti-static radiation resistant fabric |
| CN1690274A (en) * | 2004-04-26 | 2005-11-02 | 胡淑欣 | High performance radiation proof cloth |
| CN104988720A (en) * | 2015-07-22 | 2015-10-21 | 上海晨隆纺织新材料有限公司 | Nano silver in-situ formation silver-plating method based on plasma modification and silver-plated fabric |
| WO2016017595A1 (en) * | 2014-07-28 | 2016-02-04 | 石川金網株式会社 | Metal fabric, interior decoration, partition member, clothing, electromagnetic wave shielding member |
| CN206089958U (en) * | 2016-08-24 | 2017-04-12 | 中央军委后勤保障部军需装备研究所 | Electromagnetic shield fabric with electric conductivity period structure |
-
2020
- 2020-06-22 CN CN202010576073.0A patent/CN111719214A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11337681A (en) * | 1998-05-22 | 1999-12-10 | Toray Ind Inc | Radiation protective cloth and radiation protection product |
| CN2372331Y (en) * | 1999-05-19 | 2000-04-05 | 王国和 | Anti-static radiation resistant fabric |
| CN1690274A (en) * | 2004-04-26 | 2005-11-02 | 胡淑欣 | High performance radiation proof cloth |
| WO2016017595A1 (en) * | 2014-07-28 | 2016-02-04 | 石川金網株式会社 | Metal fabric, interior decoration, partition member, clothing, electromagnetic wave shielding member |
| CN104988720A (en) * | 2015-07-22 | 2015-10-21 | 上海晨隆纺织新材料有限公司 | Nano silver in-situ formation silver-plating method based on plasma modification and silver-plated fabric |
| CN206089958U (en) * | 2016-08-24 | 2017-04-12 | 中央军委后勤保障部军需装备研究所 | Electromagnetic shield fabric with electric conductivity period structure |
Non-Patent Citations (1)
| Title |
|---|
| KH: "《http://zgmuyw.com/xinwen/3724.html》", 19 June 2020, 星辰健康网 * |
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